CN102582580B - Wiper pressing force adjustment mechanism - Google Patents

Abstract

A wiper pressing force adjustment mechanism, which is applied to the windshield of an automobile, includes a motor, a driving shaft and a wiper; the wiper includes a swing rod and a wiper blade, and the wiper blade is close to the windshield; the swing rod One end is connected with the scraper; the motor drives the drive shaft to rotate, and the drive shaft drives the wiper to rotate so that the scraper is close to or away from the windshield. In the wiper pressing force adjustment mechanism of the present invention and the automobile using the wiper pressing force adjustment mechanism, the driving shaft is rotated by the motor, and the wiper connected to the driving shaft rotates in a direction close to the windshield, so that the wiper with insufficient pressing force Attach the sheet to the windshield.

Description

Wiper pressing force adjustment mechanism

technical field

The invention relates to a wiper, in particular to a pressing force adjustment mechanism of the wiper.

Background technique

Generally all need to install wiper on the car, these wipers all are installed at the lower edge of front windshield, are used for scraping off rainwater and dust on the front windshield, have provided convenience for driving safety of the driver. However, with the use of the wiper blades and the aging of the blades, often due to insufficient pressing force of the wiper blades, the blades and the windshield will not fit together enough to cause jumping, which seriously affects the cleaning performance and driving comfort of the wiper blades.

Contents of the invention

The invention provides a wiper pressing force adjustment mechanism, which makes the blade with insufficient pressing force close to the windshield.

In order to achieve the above advantages, the present invention provides a wiper pressing force adjustment mechanism, which is applied to the windshield of an automobile; the wiper pressing force adjustment mechanism includes a motor, a driving shaft and a wiper; the wiper includes a swing rod and a wiper blade , the wiper is close to the windshield; one end of the swing rod is connected to the wiper; the motor drives the drive shaft to rotate, and the drive shaft drives the wiper to rotate, so that the wiper is close to or away from The windshield.

In one embodiment of the present invention, the wiper pressing force adjustment mechanism further includes a driven shaft and a gear reduction system, one end of the driven shaft is connected to the driving shaft through the gear reduction system, and the swing rod fixed on the driven shaft.

In one embodiment of the present invention, the gear reduction system includes a driving gear and a driven gear, the driving gear is fixed on the driving shaft, the driven gear is fixed on the driven shaft, the The driving gear meshes with the driven gear.

In one embodiment of the present invention, the wiper pressing force adjustment mechanism further includes a limit assembly for limiting the rotation angle of the driving shaft.

In one embodiment of the present invention, the limit assembly includes a stopper and a limiter, the limiter is fixed on the driving shaft, and the stopper is fixed on the vehicle body.

In one embodiment of the present invention, one end of the swing link is connected with the driving shaft and rotates following the driving shaft.

In the wiper pressing force adjustment mechanism of the present invention and the automobile using the wiper pressing force adjustment mechanism, the driving shaft is rotated by the motor, and the wiper connected to the driving shaft rotates in a direction close to the windshield, so that the wiper with insufficient pressing force Attach the sheet to the windshield.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of a wiper blade pressing force adjustment mechanism according to a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of a wiper pressing force adjusting mechanism according to another embodiment of the present invention.

Detailed ways

Please refer to Fig. 1, the wiper pressing force adjustment mechanism 100 of the preferred embodiment of the present invention is applied on the windshield 200 of the automobile. It should be noted that the figure only illustrates the preferred embodiment of the present invention. 100 structure, but in practical applications, the wiper is also connected with the linkage mechanism and another motor, so as to realize the action of extending and retracting the wiper.

The wiper pressing force adjustment mechanism 100 includes a motor 10 , a drive shaft 20 , a gear reduction system 30 , a driven shaft 40 , a wiper 50 and a limit assembly 60 . The driven shaft 40 is connected with the driving shaft 20 through the gear reduction system 30 . The wiper 50 includes a swing rod 52 and a wiper blade 54 , and the wiper blade 54 is closely attached to the windshield 200 . One end of the swing rod 52 is connected with the driven shaft 40 , and the other end is connected with the scraper 54 , and the swing rod 52 and the scraper 54 follow the rotation of the driven shaft 40 . When the pressing force of the scraper 54 is insufficient and the scraper 54 and the windshield 200 do not fit enough to cause jumping, the starter motor 10 drives the driving shaft 20 to rotate, and the power is transmitted to the driven shaft 40 through the gear reduction system 30, thereby from The moving shaft 40 drives the wiper 50 close to the windshield 200 .

The gear reduction system 30 includes a driving gear 32 and a driven gear 34 , and the driving gear 32 meshes with the driven gear 34 . The driving gear 32 is fixed on the driving shaft 20 and rotates with the driving shaft 20 . The driven gear 34 is fixed on the driven shaft 40 and drives the driven shaft 40 to rotate. The motor 10 drives the driving shaft 20 to rotate, and the driving gear 32 drives the driven gear 34 to rotate. The wiper 50 rotates following the driven shaft 40, swings to the windshield 200 at a certain angle on the plane perpendicular to the windshield 200 with the driven shaft 40 as the axis, changes the contact strength with the windshield 200, and realizes the adjustment of the pressing force .

The limiting assembly 60 is used to prevent the windshield 200 from being crushed due to excessive rotation angle of the wiper 50 . The limiting assembly 60 includes a limiting block 64 and a stopper 62 , wherein the limiting block 64 is fixed on the drive shaft 20 , and the stopper 62 is fixed on the vehicle body 300 . The limiting block 64 is blocked by the block 62 after the driving shaft 20 rotates for a certain angle, so that the driving shaft 20 cannot rotate, and the swing angle of the wiper 50 is controlled.

Please refer to FIG. 2 , when the output torque and speed of the motor 10 meet the requirements, the wiper pressing force adjustment mechanism 200 of another embodiment of the present invention, compared with the wiper pressing force adjustment mechanism 100 of the previous embodiment, omits gears. The deceleration system 30 and the driven shaft 40 , and the wiper 50 is directly connected to the driving shaft 20 .

The above description is only an embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with the embodiment, it is not intended to limit the present invention. Without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but if it does not deviate from the technical solution of the present invention, the technical essence of the present invention can be used for the above Any simple modifications, equivalent changes and modifications made in the embodiments still fall within the scope of the technical solution of the present invention.

Claims (5)

1. a pressing force adjusting mechanism for windscreen wiper (100), be applied on windshield (200), it is characterized in that: described pressing force adjusting mechanism for windscreen wiper (100) comprises motor (10), imput shaft (20), driven shaft (40), gear reduction system (30) and wiper (50), described driven shaft (40) is connected with described imput shaft (20) by described gear reduction system (30), described wiper (50) comprises fork (52) and scraping blade (54), and described scraping blade (54) is close to Windshield (200); Described fork (52) one end is connected with described scraping blade (54), and the other end is connected with described driven shaft (40); Described motor (10) promotes described imput shaft (20) and rotates, described imput shaft (20) drives described driven shaft (40) to rotate by described gear reduction system (30), described wiper (50) is followed driven shaft (40) and is rotated, in the plane of vertical Windshield (200), take driven shaft (40) as axle center to Windshield (200) swing certain angle, scraping blade (54) is adjacent to or away from described Windshield (200).

2. pressing force adjusting mechanism for windscreen wiper as claimed in claim 1 (100), it is characterized in that: described gear reduction system (30) comprises driving gear (32) and driven gear (34), described driving gear (32) is fixed in described imput shaft (20), it is upper that described driven gear (34) is fixed on described driven shaft (40), and described driving gear (32) and described driven gear (34) are meshing.

3. pressing force adjusting mechanism for windscreen wiper as claimed in claim 1 (100), is characterized in that: described pressing force adjusting mechanism for windscreen wiper (100) also comprises for limiting the limit assembly (60) of described imput shaft (20) rotational angle.

4. pressing force adjusting mechanism for windscreen wiper as claimed in claim 3 (100), it is characterized in that: described limit assembly (60) comprises block (62) and limiting stopper (64), it is upper that described limiting stopper (64) is fixed on described imput shaft (20), and described block (62) relatively Windshield (200) is fixing.

5. pressing force adjusting mechanism for windscreen wiper as claimed in claim 1 (100), is characterized in that: described fork (52) one end is connected with described imput shaft (20) and follows described imput shaft (20) and rotate.

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